<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	private $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
		$user=Admin::model()->find('LOWER(username)=?',array(strtolower($this->username)));
		if($user===null)
		{
			$user=User::model()->find('LOWER(contract)=?',array(strtolower($this->username)));
			if ($user===null)
			{
				$this->errorCode=self::ERROR_USERNAME_INVALID;
			} else {
				if(!$user->validatePassword($this->password))
				{
					$this->errorCode=self::ERROR_PASSWORD_INVALID;
				} else {
					$this->_id=$user->id;
					$this->username=$user->username;
					$this->errorCode=self::ERROR_NONE;
					$this->setState('role', '0');
				}
			}
		} else {
			if(!$user->validatePassword($this->password))
			{
				$this->errorCode=self::ERROR_PASSWORD_INVALID;
			} else {
				$this->_id=$user->id;
				$this->username=$user->username;
				$this->errorCode=self::ERROR_NONE;
				$this->setState('role', $user->role_id);
			}
		}
		return $this->errorCode==self::ERROR_NONE;
	}
	
	public function getId()
	{
		return $this->_id;
	}
}